Meanings
plural timberlines · alternative timber line
- The height or limit beyond which trees do not grow in mountainous or Arctic regions.
Most flocks in the Sierra and the Rocky Mountains live above the timber-line and at an altitude of twelve thousand feet.
1915 April 28, Enos A. Mills, “Wild Mountain Sheep”, in The Rocky Mountain Wonderland, Houghton Mifflin, →LCCN, →OCLC, page 37Synonyms: tree line
Synonyms & antonyms
nounThe height or limit beyond which trees do not grow in mountainous or Arctic regions.
More synonyms by meaning
nounline marking the upper limit of tree growth in mountains or northern latitudes
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Cite this entry
timberline. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/timberline
“timberline.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/timberline. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “timberline,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/timberline.
Source: timberline on Wiktionary, CC BY-SA 4.0.